how to write constraint rule on single select picklist

Summary:

Content (please ensure you mask any confidential information):

We are getting the product data from SAP which we are storing in the data table and using the config attributes to filter and show the data in drop down. Now the user is asking use another data table which is having multiple condition and will be dynamic which user can change as per the business logic on top of that. So what data we are getting from 1st data table again we have to do filter on top of that.

Version (include the version you are using, if applicable):

23 d